Improvement in closing feuit-jaes



W. L; IMLAY. CLOSING FRUIT JARS.

No. 75,275. Patented Mar.- 10,1868.

time tetra WILLIAM L. IMLAY, 0F PH1L1IDELPHIA, PENNSYLVANIA.-

Letters Patent No. 75,275, dated March 10, 1868.

IMPROVEMENT IN CLOSING FRUIT-JARS,

TO ALL WHOM IT MAY CONCERN:

, Be it known that I, WILLIAM, L. IMLAY, of Philadelphia, Pennsylvania, have invented an'Impro'v'ed Fruit-i Jar; and -I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, and the letters thereon. i i

Figure 1 is a view of my jar with my fastening."

Figure 2 is a view of clasp removed from the'jar; and

Figure 3 is a view 'of my improved seat or shoulder for the rubber gasketor ring.

My objects areto'hold the.cover securely by a simple and effective device. easily put 'on' and taken all of the jar, and which makes a constant and an elastic pressure on the-middle or centre of the cover, and to make a secure rubber closure-between the cover and jar. I

This I accomplish by making agsomewhat deepand large screW thread cavity about the neck. of the jar, fitted to receive and hold a spiral wire coil. And'I makesu ch a coil, and also-bend thewire at its top or upper encl'over the coil to its centre, so shaping it that its end adapts itself to and makes pressure'on the centre of the cover of the jar. The seat of the rubber ring I makebroad, by inclining the top of the jar inwards, so that where the ring lies the neck is more contracted'tban at the other. parts of the neck and topof the jar, and for i the following purposes: First,"a better bearing of the cover; second, greater security torthe closure of the jar; third, retaining better the ring in its place whilethe jar is being filled and sealed; and, fourth, the self adhe'sion 4 of thering to,its seat when sprung over the top of the jar. y y I 4 I This is seen in the drawings, where, in fig. 1,1A is the 'jar, and B the screw-thread on its neck, with the coil of vrire, D, in it; and E is the upper part of the wire'coil, bent over the cover F, and making elastic-spring pressure at all times on the cover at-G, the central part'of a metallic cover. 7

In fig. 2 the lock or elosingwire coil is seen removed from the jar. It is made'of D, the coil, E, the upper part or arm of the coil, and. G the point of "bearing on the cover, which usually fits into a slight. cup cavity in the cover. y I

In fig. 3 the same] letters indicatethe same parts, and H is the rubber gasket or ring inits seat, which is broad andblown on the outside of the jer above the screw-thread; The top of the jar I, is seen to incline outwards above the ring, so that it is larger than the seatof the ringfivhich gives aself-retaining-power to the ring when sprung over into its seat; and at J is seen a section of a glass cover, showing its internal and external A structure,

The use ofthe jar is by filling it by any ordinary or special methodin use, when the cover isput on. The wire coil is then adjusted over the top of the jar, so thatthe lower end or p'art of the coil begins to slide into the screw-thread of the jar-neck; Then it is turned downwards in the screw-thread, until the top of thecoil bears on the centre of the cover, and closesthejar'; when a little further turning downwards of the coil gives an elastic or spring pressure on the cover, so that the coil and its bent part acts with a continued pressure at all times, rendering the fastening'always secure. i

The other uses of my invention are apparent to those skilled in the art towhich it appertains.-

1. I do not claim broadly a screw-threaded cavity in the neck of a fruit-jar; but I do elaim makin'g and. adopting the neck of a fruit-jar so as to be fitted to and be used for a spiral wire coil, substantially as and for the purposes set forth.

2. I claim a wire-coil, arranged and used about, or around the neck of a fruit jar, 'so as to make a fastening for fruit jars,v substantially as set forth.

3. The arrangement and construction of a wire coil about the neck of a fruit-j.ar,,so as to make an elastic pressure on. the cover, as described;

4. The broad-seated ring o: gasket H, when retained'in place by the bevelled or inclined top I, substantially as and for the purposes specified. I

WILLIAM L. IMLAY. Witnesses:

i Cass. G. IMLAY,

N. Inner, 

